From 1653c478486227728942ebd8544bb068448cb814 Mon Sep 17 00:00:00 2001
From: Nicolas Morel <nicolas@morel.io>
Date: Wed, 19 Jun 2024 17:17:15 +0200
Subject: [PATCH] fix: correct function type in alternatives error (#3043)

---
 lib/types/alternatives.js  |  9 ++++++---
 test/types/alternatives.js | 12 ++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/lib/types/alternatives.js b/lib/types/alternatives.js
index d59e7256..15a706c6 100755
--- a/lib/types/alternatives.js
+++ b/lib/types/alternatives.js
@@ -328,10 +328,13 @@ internals.errors = function (failures, { error, state }) {
         const [type, code] = report.code.split('.');
         if (code !== 'base') {
             complex.push({ type: schema.type, report });
-            continue;
         }
-
-        valids.add(type);
+        else if (report.code === 'object.base') {
+            valids.add(report.local.type);
+        }
+        else {
+            valids.add(type);
+        }
     }
 
     // All errors are base types or valids
diff --git a/test/types/alternatives.js b/test/types/alternatives.js
index 1a0d15e1..602e8e72 100755
--- a/test/types/alternatives.js
+++ b/test/types/alternatives.js
@@ -1983,6 +1983,18 @@ describe('alternatives', () => {
                 [{ p: 'a' }, false, 'oops']
             ]);
         });
+
+        it('validates alternatives with the correct type', () => {
+
+            const schema = Joi.alternatives([
+                Joi.boolean(),
+                Joi.function()
+            ]);
+
+            Helper.validate(schema, [
+                ['wrong', false, '"value" must be one of [boolean, function]']
+            ]);
+        });
     });
 
     describe('when()', () => {